OK, how do I get Inbox's "sweep" action in Gmail? What "sweep" did is just in one click get rid of _everything_ that you haven't pinned. It was a massive produ

OK, how do I get Inbox's "sweep" action in Gmail? What "sweep" did is just in one click get rid of _everything_ that you haven't pinned. It was a massive productivity boost for someone for whom dealing with email was mostly a waste of time (my company doesn't really use email much, so my inbox mostly contained notifications from other apps).